Hexacid — Hex ac id, a. [Hex + acid.] (Chem.) Having six atoms or radicals capable of being replaced by acids; hexatomic; hexavalent; said of bases; as, mannite is a hexacid base. [1913 Webster] … The Collaborative International Dictionary of English

Homonuclear molecule — Homonuclear molecules, or homonuclear species, are molecules composed of only one type of element. Homonuclear molecules may consist of various numbers of atoms, depending on the element s properties. Some elements form molecules of more than one … Wikipedia